diff options
Diffstat (limited to 'src/elflint.c')
| -rw-r--r-- | src/elflint.c | 57 |
1 files changed, 42 insertions, 15 deletions
diff --git a/src/elflint.c b/src/elflint.c index 0a415b00..b1eb5d3d 100644 --- a/src/elflint.c +++ b/src/elflint.c @@ -1513,32 +1513,42 @@ section [%2d] '%s': entry %zu: DT_PLTREL value must be DT_REL or DT_RELA\n"), switch (dyn->d_tag) { size_t n; + case DT_STRTAB: + /* We require the referenced section is the same as the one + specified in sh_link. */ + if (strshdr->sh_addr != dyn->d_un.d_val) + { + ERROR (gettext ("\ +section [%2d] '%s': entry %zu: pointer does not match address of section [%2d] '%s' referenced by sh_link\n"), + idx, section_name (ebl, idx), cnt, + shdr->sh_link, section_name (ebl, shdr->sh_link)); + break; + } + goto check_addr; + default: if (dyn->d_tag < DT_ADDRRNGLO || dyn->d_tag > DT_ADDRRNGHI) /* Value is no pointer. */ break; /* FALLTHROUGH */ - case DT_PLTGOT: + case DT_AUXILIARY: + case DT_FILTER: + case DT_FINI: + case DT_FINI_ARRAY: case DT_HASH: - case DT_STRTAB: - case DT_SYMTAB: - case DT_RELA: case DT_INIT: - case DT_FINI: - case DT_SONAME: - case DT_RPATH: - case DT_SYMBOLIC: - case DT_REL: - case DT_JMPREL: case DT_INIT_ARRAY: - case DT_FINI_ARRAY: - case DT_RUNPATH: - case DT_VERSYM: + case DT_JMPREL: + case DT_PLTGOT: + case DT_REL: + case DT_RELA: + case DT_SYMBOLIC: + case DT_SYMTAB: case DT_VERDEF: case DT_VERNEED: - case DT_AUXILIARY: - case DT_FILTER: + case DT_VERSYM: + check_addr: for (n = 0; n < ehdr->e_phnum; ++n) { GElf_Phdr phdr_mem; @@ -1557,6 +1567,23 @@ section [%2d] '%s': entry %zu: %s value must point into loaded segment\n"), ebl_dynamic_tag_name (ebl, dyn->d_tag, buf, sizeof (buf))); } + break; + + case DT_NEEDED: + case DT_RPATH: + case DT_RUNPATH: + case DT_SONAME: + if (dyn->d_un.d_ptr >= strshdr->sh_size) + { + char buf[50]; + ERROR (gettext ("\ +section [%2d] '%s': entry %zu: %s value must be valid offset in section [%2d] '%s'\n"), + idx, section_name (ebl, idx), cnt, + ebl_dynamic_tag_name (ebl, dyn->d_tag, buf, + sizeof (buf)), + shdr->sh_link, section_name (ebl, shdr->sh_link)); + } + break; } } |